NPI registry status
Active
2026 NPPES data Adult Health Nurse Practitioner NPI 1376817221 MSN-ANP
Verify on CMS → Tiffany Clack, MSN-ANP
Adult Health Nurse Practitioner in Dallas, Texas.
This profile is drawn from the federal National Provider Identifier Registry (CMS NPPES), which lists more than 7 million U.S. healthcare providers - including 29,811 in Adult Health Nurse Practitioner, and covers specialty classification, practice address, and Medicare Part D prescribing data when reported. According to CMS, every field reflects the provider's official federal registration, see our methodology.
Federal data, no proprietary rating.
We show these CMS records as-is - no composite score, no star rating, no editorial opinion layered on top.
Prescribing volume
5K
Medicare Part D claims · 222 beneficiaries · Adult Health Nurse Practitioner avg: 1K
Generic prescribing
90%
generic claims · 9% brand-name · higher generic rates reduce patient out-of-pocket costs
Source: CMS Medicare Part D Prescriber Public Use File, 2024
What the federal data shows
Tiffany Clack, MSN-ANP filed 4,617 Medicare Part D claims in 2024 as an Adult Health Nurse Practitioner in Dallas, Texas, prescribing 90% generic.
- 5K
- Part D claims, 2024
- 90%
- generic prescribing
- ≥93rd
- pct by Part D claim volume (lower-bound band)
Every figure on this page comes straight from federal CMS records (NPPES, Medicare Part D, MIPS, Open Payments) - no proprietary rating or editorial opinion is applied.
Federal trust snapshot
What official records show about Tiffany Clack, MSN-ANP
Federal records show an active NPI with Medicare Part D prescribing activity — verifiable registry data, not a proprietary rating.
- Verified
NPI registry status
Active listing in the CMS National Provider Identifier Registry (NPI 1376817221), first enumerated 02/23/2012.
Source: CMS NPPES
- Reported
Medicare Part D participation
Filed 4,617 Medicare Part D prescription claims in the 2023 CMS public use file — indicates active Medicare prescribing participation.
Source: CMS Part D Prescriber PUF
- Reported
Hospital affiliations
2 CMS Care Compare hospital affiliations on record — practice footprint from the Doctors and Clinicians file.
Source: CMS Care Compare
- State context
State board disciplinary context
Texas statewide board action statistics are published annually — these figures describe aggregate state activity, not Tiffany Clack, MSN-ANP's individual license status. Verify directly with the state medical board.
Source: TMB annual report 2023
- Not in federal data
Individual sanction lookup
PlainDoctor does not publish per-provider disciplinary determinations. Confirm current license and any individual actions through the state medical board or FSMB verification service.
Source: State medical board / FSMB
This trust snapshot summarizes only what appears in federal CMS/NPPES public records. It is not a composite score, star rating, patient review, or clinical recommendation. PlainDoctor never fabricates reviews or AggregateRating schema.
CMS NPPES provider registry desk
NPI 1376817221 · Adult Health Nurse Practitioner
NPI-10 · ENUM-MID · TAX-MID · RX-MID · BOOK-LIGHT · PHOTO-ENUM
- NPI-10 1376817221
- ENUM-MID 2012
- TAX-MID 30K Adult Health
- RX-MID 4,617
- BOOK-LIGHT 1,115 in Texas
- PHOTO-ENUM Sharon Moore · 2012
Tiffany Clack, MSN-ANP's Medicare Part D volume vs every U.S. prescriber
Total Medicare Part D claims, 2024, across all CMS prescribers nationally
4,617 ≥ 93rd percentile 93% of 1,416,883 prescribers are in lower value bands
Each bar is a band; taller bars hold more prescribers. The dashed line + filled bar mark this entry. Hover or tap any bar for its full count, share, and where it sits relative to this entry.
The percentile is a conservative 100-claim band: it counts only prescribers in lower claim-volume bands. Medicare Part D claim volume is activity context, not a quality measure or recommendation. See methodology § corpus placement.
Source CMS Medicare Part D Prescriber Public Use File · 2024
What does the federal data show about Tiffany Clack, MSN-ANP?
Quality data not reportedPrimary specialty
Adult Health Nurse Practitioner
Medicare Part D claims
4,617 258% vs specialty avg
Specialty distribution in Texas
How Adult Health Nurse Practitioner compares to other specialties among Texas providers
Board certification
Not published by CMS
CMS does not publish a per-provider board-certification field in NPPES. PlainDoctor does not have a reliable per-specialty certification rate to show for Adult Health Nurse Practitioner. Verify directly:
How MIPS and board certification work
The Merit-based Incentive Payment System (MIPS) scores providers 0–100 across four performance categories: Quality, Cost, Promoting Interoperability, and Improvement Activities, weighted under 42 CFR §414.1380. Reporting is voluntary for many small practices, so absence of a MIPS score is not a quality signal.
Board certification through an ABMS or AOA member board signals voluntary post-licensure examination plus continuous Maintenance of Certification cycles. Verify any individual provider's status through certificationmatters.org (ABMS) or osteopathic.org (AOA).
Practice Address
Provider Details
| NPI | 1376817221 |
|---|---|
| Specialty | Adult Health Nurse Practitioner |
| Credentials | MSN-ANP |
| Gender | Female |
| NPI Issued | 02/23/2012 |
Hospital and facility affiliations
Facilities where Tiffany Clack, MSN-ANP bills Medicare from. Star ratings (1-5) are CMS Hospital Compare's "Hospital overall rating" - a composite of mortality, readmission, patient experience, safety, timely care, and efficient use of medical imaging measures. Source: CMS Care Compare.
Healthtexas Provider Network
Dallas, TX
Legacy Healthcare Services Inc
McKinney, TX
Affiliations sourced from CMS Doctors and Clinicians National Downloadable File; hospital ratings from CMS Hospital General Information dataset (cross-referenced by facility name + state).
License & disciplinary context - Texas TMB 2023 annual report
Aggregate state board data only, NOT a determination of any individual provider's status. The figures below describe statewide disciplinary activity across all ~77K Texas medical licensees in 2023 - they are NOT specific to Tiffany Clack, MSN-ANP. To verify Tiffany Clack, MSN-ANP's current license status, search the TMB public license lookup directly, or check the Federation of State Medical Boards (FSMB) verification service.
344
Total board actions, Texas 2023
Across 334 cases
4.47
Actions per 1,000 licensees
Texas statewide rate
probation
Most common action type
94 cases
TMB publishes annual disciplinary statistics as part of public-record reporting under each state's Administrative Procedure Act. See the full breakdown by action type and year on the Texas disciplinary trends page. Cross-checked against FSMB U.S. Medical Regulatory Trends.
Brand vs generic prescribing mix · Generic-heavy
Tiffany Clack, MSN-ANP - brand share 9.0%
Adult Health Nurse Practitioner average
9% brand-name claims vs 90% generic, on 4,617 2024 Medicare Part D claims.
The federal Medicare Part D Generic Dispensing Rate national benchmark sits near 90% generic / 10% brand for primary-care prescribers, per CMS Office of the Actuary 2024 estimates. Higher brand share is common in specialty prescribing where generic equivalents are not available.
Medicare Part D Prescribing Data
CMS Medicare Part D prescriber-level data for calendar year 2024.
4,617
Total Claims
$285K
Total Drug Cost
222
Medicare Beneficiaries
Prescribing Breakdown
- 30-Day Fills
- 5,615
- Total Day Supply
- 155,913
- Brand vs Generic
- 9% brand / 90% generic
- Brand Drug Cost
- $191K
- Generic Drug Cost
- $93K
- Opioid Claims
- 28 (0.6% rate)
- Antibiotic Claims
- 74
Patient Demographics
- Average Patient Age
- 85.5 years
- Avg HCC Risk Score
- 2.35
- Gender Split
- 75% female / 25% male
Top Prescribed Drugs (Medicare Part D)
Top drugs by claim count for calendar year 2024. Based on Medicare Part D data only.
What Tiffany Clack, MSN-ANP prescribes most
Top Medicare Part D drugs by claim count, 2024
- Levothyroxine Sodium
Levothyroxine Sodium
285 claims
- Sertraline Hcl
Sertraline Hcl
284 claims
- Atorvastatin Calcium
Atorvastatin Calcium
176 claims
- Donepezil Hcl
Donepezil Hcl
169 claims
- Furosemide
Furosemide
160 claims
- Trazodone Hcl
Trazodone Hcl
124 claims
- Memantine Hcl
Memantine Hcl
118 claims
- Gabapentin
Gabapentin
116 claims
| Drug | Claims |
|---|---|
| Levothyroxine Sodium | 285 |
| Sertraline Hcl | 284 |
| Atorvastatin Calcium | 176 |
| Donepezil Hcl | 169 |
| Furosemide | 160 |
| Trazodone Hcl | 124 |
| Memantine Hcl | 118 |
| Gabapentin | 116 |
| Losartan Potassium | 115 |
| Potassium Chloride | 115 |
* Counts below 11 are suppressed by CMS for patient privacy. Generic names shown where available from CMS Part D data.
Adult Health Nurse Practitioner Overview
How Tiffany Clack, MSN-ANP fits within the Adult Health Nurse Practitioner landscape nationally.
29,811
Adult Health Nurse Practitioner Providers in US
55
States with Adult Health Nurse Practitioner
1,291
Avg Claims per Provider
Tiffany Clack, MSN-ANP's 4,617 claims are above the specialty average of 1,291.
Nationwide Adult Health Nurse Practitioner peers with similar MIPS or enrollment year
Two federal-record peer sets for Clack, both outside Texas so the neighborhoods are not geographic containment.
Same NPPES enumeration year (2012)
Same-specialty clinicians who entered the NPI registry in the same calendar year, outside this state.
Nearby Adult Health Nurse Practitioner Providers in Texas
Other clinicians with the same primary specialty enrolled in Texas, drawn from the same CMS NPPES roster as Clack.
One of 1,115 Adult Health Nurse Practitioner providers enrolled in Texas, 5 are shown here.
Estella Abam
APRN-C
Houston, TX
Nnenna Abbas
NURSE PRACTITIONER
Rowlett, TX
Rejimol Abraham
NP-C
Houston, TX
Ibrahim Abumaria
AGPCNP
Shavano Park, TX
Brianne Addicks
ANP
Brenham, TX
Compare Adult Health Nurse Practitioner nationally: see state-by-state distribution →
Frequently Asked Questions
What is Tiffany Clack, MSN-ANP's specialty? ▼
Tiffany Clack, MSN-ANP specializes in Adult Health Nurse Practitioner and practices in Dallas, Texas. Credentials: MSN-ANP.
How much does Tiffany Clack, MSN-ANP prescribe under Medicare Part D? ▼
In 2024, Tiffany Clack, MSN-ANP wrote 4,617 Medicare Part D claims totaling $285K in drug costs for 222 beneficiaries.
Where is Tiffany Clack, MSN-ANP located? ▼
Tiffany Clack, MSN-ANP is located at 712 N. WASHINGTON AVE, Dallas, TX, 75246. Phone: (214) 820-9115.
What is Tiffany Clack, MSN-ANP's NPI number? ▼
Tiffany Clack, MSN-ANP's National Provider Identifier (NPI) is 1376817221, issued on 02/23/2012.
Does Tiffany Clack, MSN-ANP prescribe more brand-name or generic drugs? ▼
Tiffany Clack, MSN-ANP's prescribing is 9% brand-name and 90% generic drugs by claim count, with $191K in brand drug costs.
Does Tiffany Clack, MSN-ANP prescribe opioids? ▼
Yes, Tiffany Clack, MSN-ANP had 28 opioid claims in 2024 with an opioid prescribing rate of 0.6%.
How many Adult Health Nurse Practitioner providers are there in the US? ▼
There are 29,811 Adult Health Nurse Practitioner providers across 55 states in the US. The average Adult Health Nurse Practitioner provider writes 1,291 Medicare Part D claims per year.
What drugs does Tiffany Clack, MSN-ANP prescribe most often? ▼
Based on 2024 Medicare Part D data, Tiffany Clack, MSN-ANP's most frequently prescribed drugs include Levothyroxine Sodium, Sertraline Hcl, Atorvastatin Calcium. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does Tiffany Clack, MSN-ANP accept Medicare? ▼
Tiffany Clack, MSN-ANP appears in CMS Medicare data with 4,617 Part D claims and 222 Medicare beneficiaries in 2024. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify Tiffany Clack, MSN-ANP's credentials? ▼
Tiffany Clack, MSN-ANP's NPI is 1376817221 with credentials MSN-ANP. You can verify this through the NPPES NPI Registry, check state medical board records, and confirm board certification through the ABMS or AOA.
Data Sources
View source datasets and methodology notes
- Provider Directory
- CMS National Plan and Provider Enumeration System (NPPES), download.cms.gov/nppes, updated monthly. Contains NPI, specialty, credentials, and practice location.
- Specialty Classification
- NUCC Health Care Provider Taxonomy (nucc.org), the industry standard for classifying provider specialties in Medicare and Medicaid billing.
- Prescribing Data
- CMS Medicare Part D Prescriber Public Use File (2024). Includes claims, drug costs, beneficiaries, and opioid prescribing rates.
- Limitations
- Provider data is self-reported to CMS. Prescribing data reflects Medicare Part D only and does not include commercial insurance, Medicaid, or cash prescriptions. Claims below 11 beneficiaries are suppressed by CMS for privacy.
See our complete data methodology for details on how we collect and process government data.
Data as of August 2026 (NPPES) / 2024 (Medicare Part D). Source: Centers for Medicare & Medicaid Services (CMS).
Disclaimer: Data from CMS NPPES and Medicare Part D. PlainDoctor does not rate or rank providers. Provider information is self-reported and may not be current. Always verify information directly with the provider. About · Methodology
Every figure on PlainDoctor is rendered directly from the federal CMS NPPES registry, Medicare Part D, MIPS, and Open Payments records, no number is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of August 2026.